Straightedge device for determining angles between cylinders and the like



Sept. 20, 1949. w, MQORE STRAIGHT EDGE DEVICE FOR DETERMINING ANGLES BETWEEN CYLINDERS AND THE LIKE Filed July l4, 1944 2 Sheets-Sheet 1 Inventor W fim Sept. 20, 1949. w. K. MOORE STRAIGHT EDGE DEVICE FOR DETERMINING ANGLES BETWEEN CYLINDERS AND THE LIKE 2 SheetsSheet 2 Filed July 14, 1944 II III! Inventor JzZs'onrJIooreM a Attorneys Patented Sept. 2Q, 1949 STRAIGHTEDGE DEVICE FOR DETERMIN- ING ANGLES BETWEEN CYLINDERS AND THE LIKE Wilson K. Moore, San Diego, Calif., assignor of forty-nine percent to Charles B. Leedy, Na-

tional City, Calif.

Application July 14, 1944, Serial No. 544,850

2 Claims.

This invention relates to a novel and improved device for finding varying angles and marking ninety degree centers on vertical and horizontal lines of hollow and solid cylinders such as, for

example, pipes, rods and the like.

In carrying out the principles of the invention,

I have evolved and produced a simple and reliable device expressly designed to locate outside or inside vertical and horizontal centers of pipes and solid cylinders in any size, this for conveniently laying out ordnance, preparatory to cutting various degree angles, or quartering the diameter of a pipe or cylinder. Briefly, the preferred embodiment of the invention is characterized by a pair of substantially V-shaped saddles, these constituting the base members and being hingedly connected together, there being gauge means at the hinged joint of the adjacent ends of said saddles, and one of said saddles being provided with an especially constructed punch unit, the latter for indenting and marking the desired points about the circumference of the work, whereby to effectively achieve the desired aims.

More particularly, novelty is predicated upon a device of the class stated wherein the springpressed punch is adapted to be struck with a hammer or the like, the cylinder carrying the punch thereof being provided with a suitably calibrated turnable dial and said dial serving as a mount for diametrically opposite parallel spirit levels, these being shiftable to points of vantage in accurately determining the circumferentially shifted positions of the device, as a whole, prior to indenting and marking the work.

Other features and advantages will become more readily apparent from the following descrlption and the accompanying illustrative drawings.

In the drawings, wherein like numerals are employed to designate like parts throughout the same- Figure 1 is a side elevational view of an angle and center finder and marker designed and constructed in accordance with the principles of the instant invention.

Figure 2 is a top plan view of the same.

Figure 3 is a section, on an enlarged scale, taken on the plane of the line 33 of Figure 2, looking in the direction of the arrows.

Figure 4 is a central vertical sectional and elevational view, this on the line 4-4 of Figure 3, looking in the direction of the arrows.

Figure 5 is a section on the plane of the line 5-5 of Figure 2.

Referring now to the drawings by distinguishing reference numerals, it will be observed that the base is made up of complemental adapters 6 and 1, these of corresponding or variable lengths, as desired, substantially V-shaped in cross-sectional form to saddle upon the work 8 as shown diagrammatically in Figure 3. If desired, either one or both adapters may be provided with appropriately calibrated scales, one bein indicated at 9 in Figure 1. The adapters are also provided with suitably arranged and shaped apertures 58 serving as sights and permitting inspection during the operative use of the invention. The adjacent or abuting ends of the adapters are provided with coacting pairs of ears II and I2, these pierced by a hinge bolt I3 (see Figure 5), the threaded end I4 of the bolt being provided with a thumb-nut [5 for clamping purposes. At this point of hinging connection, said adapters are provided with coacting indicators. These indicators are segmental in general configuration and are in opposed alignment, the one on the adapter 6 being denoted'at l6 and the companion indicator, on the adapter 1 being differentiated by the numeral H. The latter indicator telescopes into the first-named indicator [6 and is provided with a suitably graduated measuring scale I8, as shown in Figure 2. These coacting indicators serve to provide for accurate determination of the angularity of the adapters 6 and 1 when they are used in conjunction with work parts at different angles in relation to one another (see the dotted line adjustment in Figure 1) As previously mentioned, the adapter 6 is provided with a right angularly disposed punch unit [9. This comprises (see Figure 4) a cylinder 20 appropriately anchored in the crest or crown of the adapter. It is provided in its upper end with a closing plug 2| centrally bored to accommodate the impact extension 22 on the upper end of the punch 23. The body portion of the latter fits snugly in the cylinder and the upper shouldered end is provided with a coiled return spring 24, this surrounding the impact element 22 resting on the body at one end and against the plugcap at the opposite end. The lower reduced extension 25 is properly pointed, this to provide an indentation in the work 8.

The punch unit also includes a disk 2-6 provided with marginal scales 21, these coacting with pointers 29 and 30 at diametrically opposite points, the pointers being on the cylinder 20. The disk is mounted for rotation on a screwthreaded stud 3| equipped with a binding nut 32 for convenient rotation and adjustment purthat is, top dead-center has been rioundeordoa cated. Then by taking a hammer or the like and When finding the upper Vertistriking the punch, this provides \an indentation f to guide the user in taking the next successive steps. To find a horizontal center ninety :degnees from the top dead-center, the user simply places the saddle adapter ion the pipe in aihonizontal position. The disk ,26 can be adjusted to bring the desired level conveniently into a lay. Whenenpon the punch is again struck to form the i560- .ond Eindenture, this in the .manner be-fore exiplained. V

This device is usable by pipe fitters, welders, and :oil field pipe layout-crews. it can be used for inside as well outside opera ions in lar er Pipes. The extension adapter 'lis :us ml ponj n tion with the adapt r 16 :a-ndnunch :unit as in achievin desired results when th nines :or I

work parts are at adifierent angles :from other, ranging from right angles -.to intermediate n lesbe ween these twoextremes.

Much -.o,f the description stresses :the zcomhination 10f the punch device 1L9 with the adapters :6 and It is to be :noted, however, that itheladarpiters 6 and 7! may :be used ainzconiunction with mach other somewhat independent nfethegpundh inniteor device l9. To this :end, :pleas'e zobserye :ure :1 that the adjacent hinged ends the pants ,6 and 1 are sent away 011 it-he nindersi'des '{SO ithat it is possible to use these idevicea'ithat is, ithe :;parts 15 and .1, :to ibessvvumg-.upeat right each other either aipwardzly as shown in dotted :lines', or downwardly :(not showmriorswrungiinto :the same :plane with one another as sshovm in full lines. Of course, any intermediate rposttiorn between the :parts is also within the range inf utility .of :the .structnre. These devices :6 and ill, in conjunction with .the indicating elements il-i6 and ll, constitute the angle finding phase for cylindersrand'theilike.

It is :to be noticed also that the flower end of the cylinder is closed as :shown, for instance, in

Figure :4 and that the "lower end portion of the punch reduced and the shouldered portion acnigages the closed alower' end of dihe icylin'der. it is possible by nsing .the set-screw 35 to withdraw :the'ipunch completely intoithe body of thecylinzder :against the tension of 'the spring and 'to lock it in this inwardly retracted position by said setscrew. This closes the pointed end 25 in an outof-the-way position.

It is thought that persons skilled in the art to which the invention relates will be able to ob- .tainra nlear understanding of .the invention after considering the description in connection with the drawings. 7 Therefore, a more lengthy description is regarded as unnecessary. Minor changes in the shape, size and arrangeamerrtsohdetails coming within the field of invention claimed may ibe resorted to in'actual practice, if desired. V

. eflesonibeddihe invention, what is claimed asinewiis: V 7

an iangde sfinder for cylinders and the like, a pair of elongated complemental work-contacting adapters substantially V -shaped in cross-seciiiionr-iirom' end to end and hingedly connected to one another at their inner ends and provided at said :irmer endsv with coastin measuring and in- -,dic.ating elements, .said .hinged ends being obli uely cut away in angular ldirectionsrtosperimit said adapters to .be disposed in a plane :with

one another, or .atedifiereni; angu ar-positions 'for 7 an le finding purposes.

2. In an angle :finder ar-cylinders and the like, a nair of elongated complemented work-icontacting adapter members, substantially a/ shaped ,in -Ql?0 SSSBC.ti01'-la.1 dorm efromone tend to sthe other,

the inner vertex portion or the respective members being hingedly connected together and the adjacent inner ends of said'members be ng ihev-V .eled downward-1y and \outwardig from the hinge connection, when said members are {in long tudisimilar segmental nantand-saidmantsntting tel-escopically together and having .ooactin'gioeilibra :tions $1 01 measuring and indicatin :nnrroses.v

' I :K. MOQBPE.

IE sanctions emen. V The following references are rrec'or-d ini-the Tile df' tliis patent: I .szmzrns .rnimnms Date 

